EP0104896A3 - Flowrate control for a blood flow system - Google Patents

Flowrate control for a blood flow system Download PDF

Info

Publication number
EP0104896A3
EP0104896A3 EP83305636A EP83305636A EP0104896A3 EP 0104896 A3 EP0104896 A3 EP 0104896A3 EP 83305636 A EP83305636 A EP 83305636A EP 83305636 A EP83305636 A EP 83305636A EP 0104896 A3 EP0104896 A3 EP 0104896A3
Authority
EP
European Patent Office
Prior art keywords
blood
flowrate
speeds
blood flow
flow system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83305636A
Other languages
German (de)
French (fr)
Other versions
EP0104896A2 (en
Inventor
Vernon H. Troutner
Richard A. Morrow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baxter International Inc
Original Assignee
Extra Corporeal Medical Specialties Inc
Baxter Travenol Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Extra Corporeal Medical Specialties Inc, Baxter Travenol Laboratories Inc filed Critical Extra Corporeal Medical Specialties Inc
Publication of EP0104896A2 publication Critical patent/EP0104896A2/en
Publication of EP0104896A3 publication Critical patent/EP0104896A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/303—Details having a reservoir for treated blood to be returned
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/305—Control of inversion point between collection and re-infusion phase
    • A61M1/306—Pressure control, e.g. using substantially rigid closed or gas buffered or elastic reservoirs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/305—Control of inversion point between collection and re-infusion phase
    • A61M1/308—Volume control, e.g. with open or flexible containers, by counting the number of pump revolutions, weighing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/03—Heart-lung

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Urology & Nephrology (AREA)
  • Anesthesiology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

Blood flowrate in a hemodialysis system is controlled in accordance with the relative speeds of two periodically operated blood pumps. Information as to the speeds of the two pumps is converted to flowrate information, which is used to determine the mean flowrate of blood through the system. The mean blood flowrate may be altered by changing the speeds of the blood pumps in a control system which maintains a constant ratio of pump speeds.
EP83305636A 1982-09-24 1983-09-22 Flowrate control for a blood flow system Withdrawn EP0104896A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/423,381 US4464164A (en) 1982-09-24 1982-09-24 Flowrate control for a blood flow system
US423381 1982-09-24

Publications (2)

Publication Number Publication Date
EP0104896A2 EP0104896A2 (en) 1984-04-04
EP0104896A3 true EP0104896A3 (en) 1984-10-10

Family

ID=23678698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83305636A Withdrawn EP0104896A3 (en) 1982-09-24 1983-09-22 Flowrate control for a blood flow system

Country Status (3)

Country Link
US (1) US4464164A (en)
EP (1) EP0104896A3 (en)
JP (1) JPS5980255A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776837A (en) * 1983-06-21 1988-10-11 Kopp Klaus F Single lumen catheter fluid treatment
US4643714A (en) * 1985-08-05 1987-02-17 Cobe Laboratories, Inc. Single needle apparatus
US4828543A (en) * 1986-04-03 1989-05-09 Weiss Paul I Extracorporeal circulation apparatus
US4767399A (en) * 1986-12-05 1988-08-30 Fisher Scientific Group Inc. Dba Imed Corporation Volumetric fluid withdrawal system
DE3923836C1 (en) * 1989-07-19 1990-09-20 Fresenius Ag, 6380 Bad Homburg, De
FR2672219B1 (en) * 1991-02-06 1998-09-11 Hospal Ind METHOD FOR CONTROLLING THE BLOOD CIRCULATION IN A SINGLE NEEDLE CIRCUIT.
US5894273A (en) * 1996-08-26 1999-04-13 Fairway Medical Technologies, Inc. Centrifugal blood pump driver apparatus
US6048363A (en) 1997-05-13 2000-04-11 Nagyszalanczy; Lorant Centrifugal blood pump apparatus
US6889082B2 (en) 1997-10-09 2005-05-03 Orqis Medical Corporation Implantable heart assist system and method of applying same
US6610004B2 (en) 1997-10-09 2003-08-26 Orqis Medical Corporation Implantable heart assist system and method of applying same
US6726647B1 (en) * 1998-10-23 2004-04-27 Gambro Ab Method and device for measuring access flow
US6592567B1 (en) 1999-12-07 2003-07-15 Chf Solutions, Inc. Kidney perfusion catheter
US6468241B1 (en) * 2000-10-26 2002-10-22 Chf Solutions, Inc. Artificial kidney set with electronic key
US20020188167A1 (en) * 2001-06-06 2002-12-12 Anthony Viole Multilumen catheter for minimizing limb ischemia
US7048680B2 (en) * 2001-06-06 2006-05-23 Orqis Medical Corporation Multilumen catheter for minimizing limb ischemia
ITTO20011222A1 (en) 2001-12-27 2003-06-27 Gambro Lundia Ab BLOOD FLOW CONTROL EQUIPMENT IN A BLOOD CIRCUIT-EXTRA-BODY.
US7351218B2 (en) * 2002-12-20 2008-04-01 Gambro Lundia Ab Device and process for extracorporeal treatment by citrate anticoagulant
US8114044B2 (en) * 2003-06-06 2012-02-14 Creativasc Medical, Llc Arteriovenous access valve system and process
US20050277804A1 (en) * 2004-06-10 2005-12-15 Robert Pecor System including a cannula having reduced flow resistance
US7445592B2 (en) 2004-06-10 2008-11-04 Orqis Medical Corporation Cannulae having reduced flow resistance
JP4094600B2 (en) * 2004-10-06 2008-06-04 日機装株式会社 Blood purification equipment
EP1896725B1 (en) 2005-05-18 2010-09-01 Gambro Lundia AB An apparatus for controlling blood flow in an extracorporeal circuit
US20080300528A1 (en) * 2007-05-29 2008-12-04 Creativasc Medical Llc Arteriovenous access valve system and process
US20090030498A1 (en) 2007-05-29 2009-01-29 Creativasc Medical Arteriovenous Access Valve System and Process
DE102008050367A1 (en) * 2008-10-02 2010-04-08 Fresenius Medical Care Deutschland Gmbh Device and method for extracorporeal blood treatment in single-needle operation
DE102009026592B4 (en) * 2009-05-29 2014-08-28 Sorin Group Deutschland Gmbh Device for determining the venous inflow to a blood reservoir of an extracorporeal blood circulation
US20110226253A1 (en) * 2010-03-16 2011-09-22 Exclusive Computer Innovations, Llc Cough shield
EP2415491B1 (en) 2010-08-02 2014-06-04 Gambro Lundia AB Extracorporeal blood treatment apparatus
EP2754458B1 (en) 2011-07-12 2017-02-01 Sorin Group Italia S.r.l. Dual chamber blood reservoir
BR112016024688A8 (en) 2014-04-25 2021-05-11 Creativasc Medical Corp magnetically activated arteriovenous access valve system and related methods
US10458833B2 (en) 2014-05-16 2019-10-29 Sorin Group Italia S.R.L. Blood reservoir with fluid volume measurement based on pressure sensor
WO2017001358A1 (en) 2015-06-29 2017-01-05 Gambro Lundia Ab Extracorporeal blood circuit for single-needle treatments

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535650A1 (en) * 1975-08-09 1977-02-10 Fresenius Chem Pharm Ind DEVICE FOR DELIVERING A LIQUID IN HOSE SYSTEMS, IN PARTICULAR BLOOD IN EXTRACORPORAL CIRCUITS, USING A HOSE PUMP, IN PARTICULAR A ROLLER PUMP
DE2636290A1 (en) * 1976-08-12 1978-02-16 Fresenius Chem Pharm Ind DEVICE FOR CONTROLLING AND MONITORING BLOOD FLOW DURING BLOOD DIALYSIS, PERFUSION AND DIAFILTRATION USING ONLY ONE CONNECTION POINT TO THE PATIENT'S BLOOD CIRCUIT (SINGLE NEEDLE TECHNOLOGY)
US4221543A (en) * 1977-11-07 1980-09-09 Renal Systems, Inc. Bloom pump system
WO1981002979A1 (en) * 1980-04-14 1981-10-29 Baxter Travenol Lab Blood fractionation apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830234A (en) * 1971-06-04 1974-08-20 Vital Assists Dialysis control system and method
US3756234A (en) * 1971-06-04 1973-09-04 Vital Assists Single needle dialysis
US3848592A (en) * 1973-04-06 1974-11-19 C Willock Single needle alternating flow blood pump system
NL158390B (en) * 1973-11-26 1978-11-15 Rhone Poulenc Sa DEVICE FOR EXTERNAL CIRCULAR DIALYSIS.
US3902490A (en) * 1974-03-27 1975-09-02 Univ Utah Portable artificial kidney system
DE2703188A1 (en) * 1977-01-27 1978-08-03 Heiner Oelrichs Control system for kidney dialysis - using disposable hoses and balancing pump for substitute soln. feed equal to blood filtrate extn.; minimising infection risk
US4401431A (en) * 1981-06-26 1983-08-30 Arp Leon J Blood pump and oxygenator monitor-controller and display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535650A1 (en) * 1975-08-09 1977-02-10 Fresenius Chem Pharm Ind DEVICE FOR DELIVERING A LIQUID IN HOSE SYSTEMS, IN PARTICULAR BLOOD IN EXTRACORPORAL CIRCUITS, USING A HOSE PUMP, IN PARTICULAR A ROLLER PUMP
DE2636290A1 (en) * 1976-08-12 1978-02-16 Fresenius Chem Pharm Ind DEVICE FOR CONTROLLING AND MONITORING BLOOD FLOW DURING BLOOD DIALYSIS, PERFUSION AND DIAFILTRATION USING ONLY ONE CONNECTION POINT TO THE PATIENT'S BLOOD CIRCUIT (SINGLE NEEDLE TECHNOLOGY)
US4221543A (en) * 1977-11-07 1980-09-09 Renal Systems, Inc. Bloom pump system
WO1981002979A1 (en) * 1980-04-14 1981-10-29 Baxter Travenol Lab Blood fractionation apparatus

Also Published As

Publication number Publication date
EP0104896A2 (en) 1984-04-04
US4464164A (en) 1984-08-07
JPS5980255A (en) 1984-05-09

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAXTER TRAVENOL LABORATORIES, INC.

17P Request for examination filed

Effective date: 19850315

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860523

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TROUTNER, VERNON H.

Inventor name: MORROW, RICHARD A.